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EP1042982A1 - Geschirrspülmaschine mit oberem und unterem Sprüharm - Google Patents

Geschirrspülmaschine mit oberem und unterem Sprüharm Download PDF

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Publication number
EP1042982A1
EP1042982A1 EP00106551A EP00106551A EP1042982A1 EP 1042982 A1 EP1042982 A1 EP 1042982A1 EP 00106551 A EP00106551 A EP 00106551A EP 00106551 A EP00106551 A EP 00106551A EP 1042982 A1 EP1042982 A1 EP 1042982A1
Authority
EP
European Patent Office
Prior art keywords
valve
switched
discs
risers
spray arms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00106551A
Other languages
English (en)
French (fr)
Other versions
EP1042982B1 (de
Inventor
Ludwin c/o Whirlpool Europe s.r.l. Rauber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Whirlpool Corp
Original Assignee
Whirlpool Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7902913&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1042982(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Whirlpool Corp filed Critical Whirlpool Corp
Publication of EP1042982A1 publication Critical patent/EP1042982A1/de
Application granted granted Critical
Publication of EP1042982B1 publication Critical patent/EP1042982B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4219—Water recirculation
    • A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves

Definitions

  • the invention relates to a dishwasher having an upper and a lower crockery tray with associated rotatable spray arms, in which the spray arms are fed with washing liquid alternately by a circulating pump, the spray arms being connectable in succession to the output of the circulating pump by means of changeover-valve means in the circulating circuit.
  • a dishwasher of this kind is known from DE 91 04 444 U1.
  • the alternating supply of the washing liquid to the upper and lower spray arms has the advantage of appreciably reducing the volume of water with which the dishwasher is filled. This enables the circulating pump to be of considerably lower capacity. Also, the washing process requires a smaller amount of washing liquid and calls for less energy to be consumed to heat the washing liquid. Because the pump is of lower capacity and the volumetric flowrate is lower, a reduction in the amount of noise generated can also be expected.
  • the object of the invention is, in a dishwasher of the above-mentioned kind, to provide a changeover-valve means which can be changed over even while the circulating pump is running without applying a high force.
  • this object is achieved on the one hand by connecting the output of the circulating pump to a valve chamber from which the two risers to the upper and lower spray arms branch off, by rotatably mounting a valve disc in each of the risers to the spray arms, and by coupling the valve discs together mechanically so that they are held secure in rotation and can be turned alternately to a first and a second switched position by means of a single switchover means, with one valve disc closing off its associated riser and the other valve disc keeping open its associated riser in the first switched position, whereas in the second switched position the one valve disc keeps its associated riser open and the other valve disc closes off its associated riser, and on the other hand by connecting the output of the circulating pump to a valve chamber from which the two risers to the upper and lower spray arms branch off, by rotatably mounting a valve disc in each of the risers to the spray arms, by associating with each valve disc a switchover means by which the associated valve disc can be turned to a first and a
  • the switchover means for turning the valve discs can be designed to be of low power and thus of small size.
  • valve discs to allow the valve discs to be mounted in rotation, provision is made for the outer contours of the valve discs to be matched to the internal cross-section of the risers and for the shaft(s) on which they are mounted to be aligned along the axes of symmetry of the valve discs perpendicularly to the longitudinal axes of the associated risers.
  • the outer contours of the valve discs and the internal cross-sections of the risers may be circular or oval in this case.
  • valve discs To allow the valve discs to take up different switched positions when mounted on a common shaft, it is easy for provision to be made for the valve discs to be arranged to be held secure in rotation on a common mounting shaft and for their planes to be offset relative to one another by the angle of rotation between the first and second switched positions.
  • each valve disc has a switchover means of its own associated with it, then the layout is such that the valve discs are arranged on separate mounting shafts and in each switched state of the switchover means the valve discs take up different switched positions (opened and closed positions respectively).
  • the positions set to in this case are preferably such that the two switched positions of the valve discs can in each case be set to by an angle of rotation of the mounting shafts of 90°.
  • provision may be made for the two switched positions of the valve discs to be set to by turning the mounting shafts through 90° alternately in the two directions of rotation.
  • the arrangement selected may equally well be such that the two switched positions of the valve discs are set to by continually turning the mounting shafts through 90° at a time in one and the same direction.
  • the switching means takes the form of a solenoid with an armature, the armature being coupled to the associated mounting shaft in the valve chamber, for the armature and hence the valve discs to be held in the first switched position by return springs when the solenoid is not energised, and for the armature and the valve discs to be set to the second switched position when the solenoid is energised.
  • What are used to provide the coupling between the armatures of the solenoids and the shafts on which the valve discs are mounted are crank-type linkage members which change the straight-line movements of the armature into rotary movements by the shafts on which the valve discs are mounted.
  • valve discs being arranged to be held secure in rotation on a common mounting shaft, are offset from one another not only by the angle of offset between the two switched positions but also, and additionally, by the angle of displacement between the longitudinal axes of the risers.
  • the arrangement which should be adopted is one where the valve discs have separate mounting shafts and the mounting shafts have separate switchover means.
  • the changeover-valve means shown in Figs.1 to 4 forms a module 10, having a body which has a connection 12 which is connected to the outlet of the circulating pump.
  • the body encloses a valve chamber 11 from which two risers 13 and 14 leading to the spray arms branch off.
  • the internal cross-section of risers 13 and 14, which are both of the same configuration, is circular in this embodiment.
  • the longitudinal axes of risers 13 and 14 lie in a common plane and extend parallel to one another. This allows a common mounting shaft 15 to be used for valve discs 16 and 17 which are arranged in risers 13 and 14, the outer contours of these discs being designed to suit the internal cross-section of risers 13 and 14.
  • valve disc 16 If the plane of valve disc 16 is perpendicular to the longitudinal axis of riser 13, then this disc is in the closed position and the washing liquid is unable to pass out of valve chamber 11 and into riser 13 and out to the spray arm connected to the riser. If the plane of valve disc 17 is on the longitudinal axis of riser 14, then this disc is in the open position and the washing liquid is able to pass out of valve chamber 11 and into riser 14 and out to the spray arm connected to the riser, as can be seen in particular from the partial sections in Figs. 2 to 4.
  • Valve discs 16 and 17 are attached to be held secure in rotation to the common mounting shaft 15 and their planes are offset from one another by 90°, so that in two switched positions which are 90° apart they each occupy different positions (closed and open or open and closed positions respectively).
  • a single switchover means 20 which is in the form of a solenoid 21 with an armature 22.
  • Armature 22 projects out into valve chamber 11 and is coupled to mounting shaft 15.
  • a crank-type linkage member is able to convert the straight-line movement of armature 21 into a rotary movement D15 of mounting shaft 15.
  • valve chamber 11 If the solenoid is switched off, a return spring (not shown) in valve chamber 11 can return armature 22 to its starting position, i.e. to the first switched position.
  • Mounting shaft 15 is turned alternately in the clockwise and anti-clockwise directions in this case.
  • a limit can be set for at least the closed positions of valve discs 16 and 17 by stops, which can also be used to allow valve discs 16 and 17 to seal off risers 13 and 14, as can be seen from Figs. 2 and 3. With a switching angle of 90° it is possible to obtain switchover means 20 with valve discs 16 and 17 and risers 13 and 14 which are easy to manufacture.
  • switchover means 20 may also be designed in such a way that mounting shaft 15 continues to be turned in one and the same direction in steps of 90° at a time, in which case the switched positions of valve discs 16 and 17 alternate but are each time different between the two risers 13 and 14.
  • each valve disc 16 and 17 is rotatably mounted in the associated riser 13 or 14 by means of a separate mounting shaft 15.1 or 15.2 and each mounting shaft 15.1 and 15.2 has a separate switchover means 20.1 and 20.2 associated with it.
  • Switchover means 20.1 and 20.2 once again comprise a solenoid 21.2 and 21.2 having an armature 22.1 and 22.2. Armatures 22.1 and 22.2 turn mounting shafts 15.1 and 15.2 and these shafts are connected to valve discs 16 and 17 in such a way that that the discs are held secure in rotation.
  • valve disc 16 closes off riser 13, whereas valve disc 17 keeps riser 14 open.
  • the two solenoids 21.1 and 21.2 may be un-energised in this case.
  • the coupling of armatures 22.1 and 22.2 to mounting shafts 15.1 and 15.2 may be accomplished in the same way as in the embodiment shown in Figs.1 to 4 and the turning of mounting shafts 15.1 and 15.2 may take place in two directions alternately or continually in one direction.
  • solenoids 21.1 and 21.2 which previously were both in the closed position, can be energised alternately, thus causing risers 13 and 14 to be opened alternately in the phases of switching.
  • Return springs are once again responsible for effecting the return to the starting position.
  • valve discs 16 and 17 may also be selected to be smaller than 90° if the outer contour of valve discs 16 and 17 or the internal cross-section of risers 13 and 14 is oval and valve discs 16 and 17 are mounted to be rotatable on an axis of symmetry.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)
EP00106551A 1999-03-30 2000-03-27 Geschirrspülmaschine mit oberem und unterem Sprüharm Expired - Lifetime EP1042982B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914359A DE19914359C5 (de) 1999-03-30 1999-03-30 Geschirrspülmaschine mit oberem und unterem Sprüharm
DE19914359 1999-03-30

Publications (2)

Publication Number Publication Date
EP1042982A1 true EP1042982A1 (de) 2000-10-11
EP1042982B1 EP1042982B1 (de) 2004-11-03

Family

ID=7902913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00106551A Expired - Lifetime EP1042982B1 (de) 1999-03-30 2000-03-27 Geschirrspülmaschine mit oberem und unterem Sprüharm

Country Status (3)

Country Link
EP (1) EP1042982B1 (de)
DE (2) DE19914359C5 (de)
ES (1) ES2229982T3 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003053211A1 (de) * 2001-12-21 2003-07-03 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit einer umsteuereinrichtung
WO2009027372A1 (de) * 2007-08-31 2009-03-05 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum betreiben einer geschirrspülmaschine
US8636851B2 (en) * 2004-04-21 2014-01-28 Bsh Bosch Und Siemens Hausgeraete Gmbh Dishwasher comprising automatically cleaning washing liquid lines
CN112294215A (zh) * 2019-07-30 2021-02-02 九阳股份有限公司 一种旋转轴线可调的洗碗机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2864410A (en) * 1956-06-28 1958-12-16 Texas Co Tandem valve arrangement for use with an eductor defueling system
DE2544299A1 (de) * 1975-10-03 1977-04-07 Siemens Ag Elektrisch betaetigbares schaltventil fuer stroemende fluide
FR2505643A1 (fr) * 1981-05-14 1982-11-19 Candy Ind Spa Lave-vaisselle a organes de commutation pour l'alimentation alternee en eau des deux etages
EP0697188A1 (de) * 1994-07-27 1996-02-21 CANDY S.p.A. Waschwasserzufuhrkontrolle für Sprüharme einer Geschirrspülmaschine
EP0702175A1 (de) * 1994-09-16 1996-03-20 Fuji Oozx Inc. Durchflussregelventil

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1482413A (en) * 1924-02-05 End plate fob
US1313762A (en) * 1919-08-19 Charges thomas
DE7821866U1 (de) * 1978-07-21 1978-11-02 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Geschirrspuelmaschine
DE9104444U1 (de) * 1991-04-12 1992-08-06 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Haushalt-Geschirrspülmaschine
IT1282596B1 (it) * 1996-02-09 1998-03-31 Candy Spa Lavastoviglie con spruzzatore rotante a ugelli irroratori selettivamente alimentati e relativo metodo di lavaggio

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2864410A (en) * 1956-06-28 1958-12-16 Texas Co Tandem valve arrangement for use with an eductor defueling system
DE2544299A1 (de) * 1975-10-03 1977-04-07 Siemens Ag Elektrisch betaetigbares schaltventil fuer stroemende fluide
FR2505643A1 (fr) * 1981-05-14 1982-11-19 Candy Ind Spa Lave-vaisselle a organes de commutation pour l'alimentation alternee en eau des deux etages
EP0697188A1 (de) * 1994-07-27 1996-02-21 CANDY S.p.A. Waschwasserzufuhrkontrolle für Sprüharme einer Geschirrspülmaschine
EP0702175A1 (de) * 1994-09-16 1996-03-20 Fuji Oozx Inc. Durchflussregelventil

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003053211A1 (de) * 2001-12-21 2003-07-03 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit einer umsteuereinrichtung
US7047986B2 (en) 2001-12-21 2006-05-23 Bsh Bosch Und Siemens Hausgeraete Gmbh Movement reversal device, particularly for a dishwasher
US8636851B2 (en) * 2004-04-21 2014-01-28 Bsh Bosch Und Siemens Hausgeraete Gmbh Dishwasher comprising automatically cleaning washing liquid lines
WO2009027372A1 (de) * 2007-08-31 2009-03-05 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum betreiben einer geschirrspülmaschine
CN101784221B (zh) * 2007-08-31 2012-12-26 Bsh博世和西门子家用器具有限公司 洗碗机的操作方法
US8834644B2 (en) 2007-08-31 2014-09-16 Bsh Bosch Und Siemens Hausgeraete Gmbh Apparatus and method for the operation of a dishwasher
CN112294215A (zh) * 2019-07-30 2021-02-02 九阳股份有限公司 一种旋转轴线可调的洗碗机
CN112294215B (zh) * 2019-07-30 2022-06-14 九阳股份有限公司 一种旋转轴线可调的洗碗机

Also Published As

Publication number Publication date
DE19914359C2 (de) 2002-07-18
DE19914359C5 (de) 2006-01-05
DE19914359A1 (de) 2000-10-12
ES2229982T3 (es) 2005-05-01
EP1042982B1 (de) 2004-11-03
DE60015417D1 (de) 2004-12-09
DE60015417T2 (de) 2005-10-27

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